U.S. President Obama claps as a Tanzanian band plays at an official arrival ceremony at Julius Nyerere Airport in Dar es Salaam. With Obama is Tanzanian President Jakaya Kikwete (right) and the first lady Michelle Obama.

U.S. President Obama claps as a Tanzanian band plays at an official arrival ceremony at Julius Nyerere Airport in Dar es Salaam. With Obama is Tanzanian President Jakaya Kikwete (right) and the first lady Michelle Obama. (Jason Reed, Reuters)

President Barack Obama set out on an eight-day trip to Africa on Wednesday that is aimed at reviving U.S. engagement with the continent. Obama's trip, his second to the continent as president, will take him to Senegal, South Africa and Tanzania. -Reuters